Happymodel CrossF4 ELRS 1-2S Flight Controller for Tinywhoop with BMI270 IMU and Serial UART ELRS V3.0 Receiver

HAPPYMODEL

Happymodel CrossF4 ELRS 1-2S Flight Controller for Tinywhoop with BMI270 IMU and Serial UART ELRS V3.0 Receiver

Reviewed byUpdated 4 Jun 2026

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£49.99

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Happymodel CrossF4 ELRS 1-2S Flight Controller with Onboard UART ExpressLRS 2.4GHz Receiver Specification:Flight controllerFirmware target: CRAZYBEEF4DX4.3.2MCU:STM32F411CEU6 (100MHz, 512K FLASH)Sensor: BMI270(SPI connection)Power supply: 1-2S Lipo Lihv battery input (DC 2.8V~8.7V)Built-in 5A(each) Blheli_S 4in1 ESC Dshot300 readyBuilt-in Betaflight OSD(SPI Control)Built-in UART ExpressLRS 2.4Ghz receiver(Default firmware ExpressLRS v3.0.1)Built-in 5V 1A BECBuilt-in voltage detection and current sensorBuilt-in Onboard flash 16Mb for Blackbox Onboard 4in1 ESCMCU upgraded to EFM8BB21Power supply: 1-2S LiPo/LiPo HV (2.8v~8.7v)Currents: 5A continuous peak 6A (5 seconds)Support BLHeliSuite programmableDefault Factory firmware: S_H_50_REV16_8.HEXSupport ESC Protocol: DSHOT150/DSHOT300/DSHOT600 Onboard UART ExpressLRS 2.4GHz ReceiverPacket Rate option: 25Hz/50Hz/150Hz/250Hz/500HzRF Frequency: 2.4GHzAntenna: enameled copper wire 31mm lengthTelemetry output Power: <12dBmReceiver protocol: CRSFDefault firmware version: ExpressLRS V3.0.1The same hardware with Happymodel EP1 Could update firmware via ExpressLRS configurator Betaflight configuration: ***Bind procedure is the same like Happymodel EP1/EP2 receiver , need to upgrade your ExpressLRS TX module to V3.X version first. Onboard blackbox enable method: Type the following command to CLI:set blackbox_device = SPIFLASHset flash_spi_bus = 2resource FLASH_CS 1 a14save Package Included:1x Happymodel CrossF4 ELRS 1-2S Flight Controller

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Product Details

BrandHAPPYMODEL
CategoryToys
MerchantMakerfire
GTIN755404239753
MPN7087662

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